[1] Nicholas Copernicus Univ, Dept Biochem, Torun, Poland
[2] Reg Palliat Care Ctr Sue Ryders Home, Ctr Psychoneurol Elderly, Bydgoszcz, Poland
[3] Nicholas Copernicus Univ, Dept & Clin Geriatr, Torun, Poland
[4] Nicholas Copernicus Univ, Dept Clin Neuropsychol, Torun, Bydgoszcz, Poland